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Scientific American, Vol. 20, No. 14 (April 1869) (1869)
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to I—1 C5 %& hi a tr1 03 GO SUSPENSION BRIDGE OVER THE OHIO RIVER, CONNECTING OHIO WITH KENTUCKY.—SEE NEXT PAGE © 1869 SCIENTIFIC AMERICAN, INC.Patents · Iron · Steel · Color · Coloring · Manufacture · Carbonic acid · Crank · Scientific American · Patent office · Cast Iron · Coloring matter · Antedated march · Send stamp · Crude steel · Steam engine · Wrought iron
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